The pressure difference in the synthesis system is high
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We are a 1-meter standard synthesis system; after operating for a while, the resistance to heat exchange increases by about 2 MPa, the current is high, the pressure is high, methane levels are low, the amount of gas vented is large, and there is less ammonia produced. Please ask an expert to analyze the reasons
Is the synthesis tower one meter long? Is it still one meter in diameter? Check whether the valve opening for cold shock is the same as before, and whether the space velocity is at an optimal level. Catalyst poisoning, reduced activity, and damage to internal components can all lead to an increase in pressure difference. Could you explain this in more detail? Is it convenient to share the DCS diagram? Let me help you analyze it.
The main issue is high resistance to cold flow; the resistance in the synthesis tower is not high
It’s probably blocked inside the cold junction, with dirty stuff like catalyst ash and oil clogging it up
We parked the vehicle, added water to the chiller system and used steam for a hot wash over several hours, after which the vehicle started working normally
The cold junction is blocked, or there are issues with the internal component design
Our single tower can produce 2,200 tons of synthetic ammonia per day, with a pressure difference of <700 KPa
Pay special attention to checking whether the level of trace elements in the fresh gas is high; only by addressing the source issue can a thorough solution be achieved